1123688 has 32 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 517440.

The previous prime is 1123669. The next prime is 1123691. The reversal of 1123688 is 8863211.

It is a plaindrome in base 10 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1123688.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5606 + ... + 5802.

It is an arithmetic number, because the mean of its divisors is an integer number (71280).

2^1123688 is an apocalyptic number.

It is an amenable number.

1123688 is an abundant number, since it is smaller than the sum of its proper divisors (1157272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123688 is a wasteful number, since it uses less digits than its factorization.

1123688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 253 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 1123688 is about 1060.0415086212. The cubic root of 1123688 is about 103.9637447590.

Adding to 1123688 its reverse (8863211), we get a palindrome (9986899).

The spelling of 1123688 in words is "one million, one hundred twenty-three thousand, six hundred eighty-eight".